Spraying method and spraying gun
A technology for spraying guns and spraying materials, applied in coatings, spraying devices, liquid spraying devices, etc., can solve the problems of limiting the application range and inapplicability of cold spraying technology, and achieve good spraying effect and convenient use
Pending Publication Date: 2018-09-04
深圳市金中瑞通讯技术有限公司
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Problems solved by technology
At present, cold spraying is only suitable for direct spraying of powdery spraying materials, not for rod or filamentary spraying materials, which limits the application range of cold spraying technology
Method used
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Embodiment Construction
[0039] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0040] In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be constructed and operate in a certain orientation, and thus should not be construed as limiting the invention.
[0041] The ...
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The invention discloses a spraying method and a spraying gun. The spraying method comprises the steps that melting or half-melting spraying materials are sprayed into a mixed spraying cavity; a vortexair flow is formed in the mixed spraying cavity, and the melting or half-melting spraying materials are changed into powdery solid spraying materials; the powdery solid spraying materials are sprayedto the preset area with the preset speed, and the solid spraying materials are deposited on the surface of a component to be sprayed. According to the spraying method, the vortex air flow formed in the mixed spraying cavity is used for directly treating the melting or half-melting spraying materials, the materials are changed into the powdery solid spraying materials, the initial state of the materials is not limited, the materials only need to be changed to be in the melting or half-melting state, and use is very convenient. The vortex air flow enables the melting or half-melting spraying materials to be sufficiently atomized in the mixed spraying cavity, the powdery solid spraying materials with the closely-consistent particle size are formed, and the good spraying effect is kept.
Description
technical field [0001] The invention relates to the technical field of spraying, in particular to a spraying method and a spray gun. Background technique [0002] In order to attach a layer of material on the surface of the product, such as attaching a conductive layer, an anti-oxidation layer, a wear-resistant layer, etc., various methods can be used. For example, by electroplating, spraying and other methods. Spraying is a common surface covering technique, which can be divided into thermal spraying and cold spraying. [0003] Thermal spraying uses gas, liquid fuel or electric arc, plasma arc, laser, etc. as heat sources to heat powdery or filamentary metals, alloys, ceramics, oxides, carbides, plastics, nylon, and their composite materials to melting Or in a semi-molten state, through the power of the heat source itself, or by adding high-speed airflow to atomize it, spray it on the surface of the pretreated workpiece at a certain speed to form a processing method that ...
Claims
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IPC IPC(8): B05D1/12B05D3/04B05B7/04B05B7/14B05B7/16
CPCB05B7/0433B05B7/1436B05B7/168B05B7/1693B05D1/12B05D3/0426
Inventor 丁梓兴
Owner 深圳市金中瑞通讯技术有限公司